Gemini 3.1 Pro Preview pricing & benchmarks
Gemini 3.1 Pro Preview is available from Google at $2.00 per million input tokens and $12.00 per million output tokens ($4.50 blended at 3:1). It accepts up to 1,048,576 tokens of context. Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation.…
Pricing
Per million tokens · OpenRouter
Input$2.00
Output$12.00
Blended (3:1)$4.50
Per image<$0.01
Specification
google/gemini-3.1-pro-preview
Context window1.0M
Max output66K
ReleasedFeb 2026
LicenceProprietary
Modalitiesin:text, in:image, in:file, in:audio, in:video, out:text
Benchmarks
Independently run — not vendor self-reports. Every score links its source.
| Benchmark | Score | Config | Run | Source |
|---|---|---|---|---|
| GPQA Diamond | 94.4% ±1.6 | high effort | 2026-08-06 | Independently run · Epoch AI |
| FrontierMath T1–3 | 59.6% ±2.9 | — | 2026-06-11 | Independently run · Epoch AI |
| FrontierMath T4 | 26.8% ±7.0 | — | 2026-06-11 | Independently run · Epoch AI |
| SimpleQA Verified | 77.3% ±1.3 | — | 2026-02-19 | Independently run · Epoch AI |
| OTIS Mock AIME | 95.6% ±3.1 | — | 2026-02-20 | Independently run · Epoch AI |
Scores published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0.
Where to run Gemini 3.1 Pro Preview
6 options across 2 providers · 3.6× between cheapest and dearest. Blended at 3:1. ⚠ marks an option serving less context than the best available, or re-pricing above a prompt-length threshold. Bracketed labels are the provider's own service tier or region.
| Host | Blended $/1M | In / Out | Context | Uptime 24h |
|---|---|---|---|---|
| Google (global/flex) ⚠ re-prices above 200K prompt tokens ($2.00/$9.00) |
$2.25 | $1.00 / $6.00 | 1.0M | 97.7% |
| Google AI Studio (flex) ⚠ re-prices above 200K prompt tokens ($2.00/$9.00) |
$2.25 | $1.00 / $6.00 | 1.0M | 99.8% |
| Google (global) ⚠ re-prices above 200K prompt tokens ($4.00/$18.00) |
$4.50 | $2.00 / $12.00 | 1.0M | 97.7% |
| Google AI Studio ⚠ re-prices above 200K prompt tokens ($4.00/$18.00) |
$4.50 | $2.00 / $12.00 | 1.0M | 99.8% |
| Google (global/priority) ⚠ re-prices above 200K prompt tokens ($7.20/$32.40) |
$8.10 | $3.60 / $21.60 | 1.0M | 97.7% |
| Google AI Studio (priority) ⚠ re-prices above 200K prompt tokens ($7.20/$32.40) |
$8.10 | $3.60 / $21.60 | 1.0M | 99.8% |
Host prices and uptime from OpenRouter, synced 2026-08-08.
Subscriptions that include Gemini 3.1 Pro Preview
Consumer plans whose published model list names this model
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FAQ
How much does Gemini 3.1 Pro Preview cost?
Gemini 3.1 Pro Preview costs $2.00 per million input tokens and $12.00 per million output tokens on OpenRouter. At a 3:1 input:output mix that blends to $4.50 per million tokens.
What is Gemini 3.1 Pro Preview's context window?
Gemini 3.1 Pro Preview accepts up to 1,048,576 tokens of context, and can generate up to 65,536 output tokens.
How good is Gemini 3.1 Pro Preview on benchmarks?
Gemini 3.1 Pro Preview scores 94.4% on GPQA Diamond, independently run and published by Epoch AI. 5 benchmark results are listed on this page, each with its run date and source.